LlSetSoundQueueing

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/LSL

SetSoundQueueing

llSetSoundQueueing

Summary

Function: llSetSoundQueueing( integer queue );

208	Function ID
0.0	Forced Delay
10.0	Energy

Set whether attached sounds wait for the current sound to finish. If queue is TRUE, queuing is enabled, if FALSE queuing is disabled. Sound queuing is disabled by default.

• integer

queue

–

boolean, sound queuing: TRUE enables, FALSE (default) disables

Caveats

• The sound queue is only 1 level deep - this means that beside the sound that is currently playing, there can only be 1 sound in reserve. The sound queue is first-come, first-serve.* SVC-4260
• Further to the above, the queue order is reversed when using llPlaySoundSlave - using the below example, the default behaviour would be to play SoundName1 and SoundName2, however when using the aforementioned function the order would be to play SoundName2 and SoundName3.
• Sound queuing is a property of the prim, not the script. It can be activated and deactivated by any script in the prim and survives script reset, re-rez and script removal.
• If used to make smooth transitions using slave/master sounds the sounds tend to go out of sync.
• There is a very small (but audible) gap of silence between sounds due to network latency and processing time.
• The queued sound must be fully loaded in the viewer, or else it will not play. llPreloadSound is not always reliable in doing its job.
• Queueing a sound that is identical to the one currently playing will fail. Use llLoopSound instead.

All Issues ~ Search JIRA for related Bugs

Examples

default
{
    state_entry()
    {
        llPreloadSound("SoundName1");//This loads the sounds into all in range viewers and cuts delay between sounds.
        llPreloadSound("SoundName2");//All sound parameters can be the name of a sound in the prim's inventory or a UUID of a sound");
        llPreloadSound("SoundName3"); //This sound will be skipped, as the queue is only 1 level deep.
    }
    touch_start(integer detected)
    {
        llSetSoundQueueing(TRUE);//Set to TRUE for queueing and SoundName2 plays after the SoundName1 has ended.
        //Set to FALSE only the second will be played since the prim has only one sound emitter and the second was called last.
        //Can be set anywhere within the script (if within an event it will activate when the event is triggered.
        llPlaySound("SoundName1", 1.0);
        llPlaySound("SoundName2", 1.0);
        llPlaySound("SoundName3", 1.0); //This sound isn't played as the queue is already full, so this is discarded.
    }
}

See Also

Functions

•	llLoopSound
•	llLoopSoundSlave	–	Plays a looped sound attached, synced with the master.
•	llPlaySoundSlave	–	Plays a sound once attached, synced with the master.

Deep Notes

History

• llSetSoundQueueing Added in SL 0.2.0^[1], the queue is only one level deep.

All Issues

~ Search JIRA for related Issues

SVC-4260

A

Since llSetSoundQueueing only allows two sounds to be played in queue can it be changed to allow more?

Footnotes

1. ^ Early release notes were not very accurate or thorough, they sometimes included information about features added in previous releases or failed to include information about features added in that release.

Signature
function void llSetSoundQueueing( integer queue );